Note that the water apparatus was used for visualization purposes only, not measurement -
Quote:
|
The water tunnel allows for visualization of the flow as it reaches and flows over the pickup truck. Points of separation and turbulence were to be recognized.
|
The wind tunnel was used to gather data: (p.7)
Quote:
|
The wind tunnel consists of a nozzle inlet, a constant area test section (plexiglass), and a diffuser exit. At the exit is located a high-powered DC motor (one speed) and a fan to draw the air through the test section. A model is secured in the test section to a scale balance located below which reads draf force (lbs-f) and lift force (lb-f)
|
The Scale Balance was calibrated prior to testing, to "allow measurement from the wind tunnel to be converted to an actual drag force value."
Wind tunnel balance scale calibration curve.